fix: the bom module was missing in the root pom (#359)
fix: the bom module was missing in the root pom (#359)

The bom module was missing in the root pom. It caused build failure in another issue in google-cloud-java repository: https://github.com/googleapis/google-cloud-java/pull/7991#issuecomment-1179254748

Other repositories declare the bom module correctly. Example: https://github.com/googleapis/java-accessapproval/blob/main/pom.xml#L116
googleapis/google-cloud-java,googleapis/google-cloud-java,googleapis/google-cloud-java